The Dunning -Kruger effect is a cognitive bias by David Dunning and Justin Kruger regarding individuals and illusory superiority.
According to this theory, the less an unskilled individual knows, the more he or she thinks he or she knows.
“The miscalibration of the incompetent stems from an error about the self, whereas the miscalibration of the highly competent stems from an error about others”, Dunning and Kruger conclude.
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